Washing machine



March 4 WZQ. 1,4853%6 H. E. VMERSELES ET AL WASHING MACHINE Filed May 5.1921 4 v4 Sheets-Sheet 1 gw wmw WM M: A W

.March 4 11924., 1 485796 H. EAMERSELES ET AL wAs'nme MACHINE Fi edma 5.1-921 I 4 Sheets-Sheet a March 4 19249 H. E. MERSELES ET AL WASHINGMACHINE Filed May 5. 1921 4 Sheets- Sheet 3 OOOOOOOOOOOOOOQ MW i m. 9A2

March 4 1924, 1,485,79fi

H. E. MERSELES ET AL WASHING MACHINE Filed May 5.. 1921 4 Sheets-Sheet 4-95 I oooooe/oooaoocoo Patented Mar. 4, 19241.

umrea stares meant earner errata.

HERBERT E. MERSELES AND HENRY R. MERSELES, OF BRONXVILLE, AND CHARLES E.

SIMMONS, OF NEW ROCHELLE, AND PAUL H. ENGEL, OF

HENRY R. MERSELES, SAID SIMMONS, BERT E. MERSELES.

Application filed May 5,

To all whom it may concern:

Be it known that we, HERBERT E. MER- BELES, HENRY R. Mnnsnmas, CHARLESF. SIMMONS, and PAUL H. ENGEL, citizens of the United States, residing,respectively, at Bronxville, county ofv \Vestchester, and State of NewYork; Bronxville, county of Westchester, and State of New York; New-Rochelle, county of Vestchester, and State of New York; and New Yorkcity, county of Bronx, and State of New York, have invented certain newand useful Improvements in \Vashing Machines, fully described andrepresented in the following specification and the accompanyingdrawings, forming a part of the same.

This invention relates to washing machines and has for an object toprovide a small, simple and compact mechanism which will adequatelyclean dishes and other articles.

Dish washing machines heretofore used have customarily includedacomparatively large tank or similar receptacle and various differentmoving parts secured to different parts of the tank or the frameworksupport ing the tank so that it has been necessary to provide a specialtank which formed a part of the machine and to attach various differentparts of the working mechanism in different related positions upon thetank and its framework in order to assemble the machine. The presentinvention provides a complete device including the dish washing mecanism for directing water against the dishes and mechanism for actuatingthe dish washing mechanism all mountedcompactly upon a single rigidframe. The actuating mechanism of the device is automotive, that is, itdoes not require a mechanical connection to an outside driving means.This device we have termed a dish washing unit.

A dish washing unit made in accordance with the invention may becompletely assembled with all its parts in proper operative relation andthereafter applied to any desired form of receptacle, such as a tank,sink, or basin. In the form which we consider most desirable, the frameof the dish washing unit includes a part which is adapted to formaclosure for an opening in the bottom of the receptacle to which theunit is applied. It is thus possible to apply NEW YORK, N. Y.; SAID ANDSAID ENGEL ASSIGNORS TO SAID HER- wasmne MACHINE.

1921. Serial No. 467,046.

the completely assembled unit to any receptacle provided with a suitableopening in its bottom by merely placing the unit in this opening andsecuring it to the bottom of the receptacle about the edge of theopening.

In order that the invention may clearly be understood, we will describein detail the specific embodiments of it which are illustrated in theaccompanying drawings, in which Fig. 1 is a side elevation partly insection of a complete dish washing machine incorporating the dishwashing unit;

Fig. 2 is a horizontal section on the line 22 of Fig. 1;

Fig. 3 is an enlarged vertical section of the lower portion of the dishwashing machine of Fig. 1 showing the construction of the dish washingunit;

Fig. 4: is a horizontal section on the line 4.4 of Fig. 3 showing theconstruction of the pump;

Fig. 5 is an elevation partly in section showing the application of thedish washing unit. to a well provided at the side of a sink and belowthe drain board of the sink;

Fig. 6 is a perspective view showing a removable attachment for sinksincorporating the dish washing unit;

Fig. 7 is an elevation partly in section showing the application of thedish washing unit to a sink; and

Fig. 8 is aplan view of the arrangement shown in Fig. 7 with the partofthe dish washing mechanism above the bottom of the sink removed.

The dish washing machine shown in Figs. 1 to 4 comprises a tank 10 whichmay be constructed of sheet metal or other suitable material. The tank10 is supported upon legs 11. The inner surface of the tank 10 isprovided with an inwardly projecting bead 12, or other suitable means,for supporting the rack 13 in which the dishes or other articles to bewashed are placed. The bottom 14: of the tank 10 is preferablydownwardly inclined towards its center as shown in Fig. 3. At the centerof the bottom 14 is a circular opening 15.

The dish washing unit 20 is inserted in the opening 15 and secured tothe bottom of the tank about the periphery of the opening, no othersupport for it being necessary. s hereinafter explained, the frame ofthe unit is formed to provide a closure for the 0 en'- I stationary partof the dish washing mecha nism comprises a pump body 22. The upperpart-of the'pump body 22 forms a casing 23 providing a chamber for arotary impeller while the bottom 24 of the pump body 22 is spaced fromthe casing 23 and forms a closure for the opening 15 in the bottom ofthe tank 10. Three radial fins 25 connect the casing 23 of the pump bodywith the bottom 24 of the body. The space between the fins 25 andbetween the bottom 24 and the lower wall 23' of the casing 23 formsinlet passages communicating with the tank 10 and leading from the sideof the pump body to points near the middle of the pump body. These inletpassages have wide, low openings at their outer ends and theircross-section gradually decreases toward their inner ends. From thecenter of the top of the casing 23 projects a neck 26 forming anupwardly di-' rected discharge opening. The motor casing 30 is rigidlysecured to the lower side of the bottom 24 of the pump body 22. In theform .illustrated, the motor casing is provided with three upwardlyextending arms 31, which are preferably made integral with the upperpart of the casing 30. The outer ends of the arms 31 are connected by aring 32 preferably made integral with the arms, and this ring is securedby screws 33 to the bottom 24 of the pump body 22. The top or upper endof the motor casing 30 is imperforate except for the shaft opening atits center.

In the rigid frame 21 of the unit is rotatably mounted a vertical shaft40 which is common to the motor and the pump of the Washing mechanism.The shaft '40 is supported upon a thrust bearing 41 located in a boss 46projecting downward from the lower end of the motor casing 30. Ashoulder 42 on the shaft 40 forms the upper race 43 of the bearing,while the lower race 44 of the bearing is formed by the upper end of athreaded sleeve 45 which is screwed into t e boss 46. lit is apparentthat the arrangement described affords means for the vertical adjustmentof the shaft 40. A bearing 47 is provided for the shaft 40 in a boss 48projecting from the upper-end of the motor casing 30. The shaft 40extends upwardly from this hearing into the pump body 22- through acentrally located hole 50 in the bottom 24 of the pump body. The uppermemes portion of the hole 50 may form an additional bearing 51- for theshaft 40 and" the lower portion of this hole is of larger diameter thanthe shaft, afi'ording space forastutfing box 52. The packing 53 of thestufiing box 52 is compressed by a threaded'sleeve 54 screwed into thelower portion of the hole 50.

A deflecting flange 55 is mounted upon the shaft 40 just above the topof the boss 48 of the motor casing 30. This. flange serves to direct anyWater which may leak through the stuiiing box 52 outwardly from theshaftso that it falls upon the imperforate top of the motor casing 30and is thus prevented from entering the motor.v

An impeller is fixedly mounted upon the upper end of the shaft 40 withinthe chamber provided by the casing 23. From the upper end of the hub 61of the impeller 60 extends a disc-shaped flange 62 from which dependspiral blades 63 preferably made integral with the flange. Similar fixedspiral blades 64 are secured to the top of the casing 23 above thedisc-shaped flange 62 and are preferably cast integrally with the top ofthe casing. A clearance is provided between the bottom of the impellerhub 61 that the top of its flange 62 just clears the lower edge of thefixed blades 64 while the lower edge of the impeller'blad-es 63 justclears the lower wall 23 of the casing 23. The threaded sleeve 45 isalso used to take up'for wear upon the thrust bearing41 so as to preventsuch wear from causing the shaft 40 to drop sufliciently to bring theimpeller blades 63 into contact with the lower wall 23 of the casing 23.

A bushing is removably secured in the discharge opening formed by theneck 26 of thepump body 22, by a screw 71 which passes through a tappedhole in the side of the neck 26 and enters an annular recess 7 2 in thebushing 70. A hollow hub 73 is rotatably mounted in the bushing 70. Thehub 73 is provided at its lower end with an external flange 74 whichengages under the lower end of the bushing 70 and thus prevents the hubfrom moving upwardly in the bushing. Hollow spray arms 75 and 76 extendradially from the hollow hub 73 above the top of the neck 26. The sprayarms 75, 76 are provided along their upper sides with upwardly directeddischarge orifices 77, 78, 79, 80 and 81. One or more of the dischargeorifices are inclined so that the reaction of water discharged throughthem causes a rotation of the hub 73 and arms 75, 76. In the form shownin the drawings, the two discharge orifices 78, 81 at the ends of thearms are thus inclined. It should be noted that the distance of thedischarge orifice 77 of the arm 75 from the axis of the hub 73 isgreater than the distance of the discharge orifice 79 of the arm 76 fromthe axis and less than the distance of the orifice 80 from the axis.Consequently, when the arms rotate, the orifice 77 moves in a circlebetween the circles in which the orifices 79 and 80 move. If desired,the end orifices 78, 81 may be located at different distances from theaxis of the hub so as to rotate in different circles. Although in theapparatus illustrated the spray arms 75, 76 are formed of pieces ofmetal separate from the hub 73, this is not essential, and the use ofthe word hub and the word arms in the claims should not be understood toimply that the hub is necessarily separate from the arms, for it may bemerely the axial portion of an integral member which forms both the armsand the hub.

The rigid frame 21 of the unit is formed to provide an annular externalflange which in the form illustrated consists of a flat ring 85 securedto a flange 86 surrounding the bottom 24 of the pump body and to thering 32 of a motor casing by bolts 87. After the dish washing unit asdescribed has been completely assembled it is placed in the opening fromabove and secured in position by attaching the flange 85 to the bottomof the tank about the periphery of the opening 15 by soldering, boltingor otherwise. If desired, the ring 85 may be secured to the bottom ofthe tank before it is attached to theframe 21 of the unit. In this casethe ring 85 becomes in efl'ect a portion of the bottom of the tank towhich the frame of the unit is attached by bolting the flange 86 to thering 85. In either case after the unit has been secured in position theportion 24 of the frame 21 of the unit forms a. closure for the openingin the bottom of the tank.

The closure 24 is provided with an eccentric opening 90 which serves asa drain opening for the tank and may also be used for filling the tank.In the form shown in Fig. 3 the opening 90 is connected by an elbow pipe91 through a three-way valve 92 with a pipe 93 leading from a source ofhot water and a pipe 94: leading to a drain.

In the tank 10 above the intake openings of the pump body 22 and belowthe spray arms 75, 76 is placed a screen or strainer 95. The screen 95preferably consists of two semi-circular portions as indicated in Fig. 2which may be removed from the tank when the spray arms 75, 76 occupy aposition at right angles to that shown in Fig. 2.

In using the dish washing machine described, a rack 13 containing soileddishes or other articles to be washed is placed in the tank 10 upon thehead 12. Hot water is ,or washing powder is admitted to the tank throughthe opening 90 by placing this opening in communication with the supplypipe 93 through the threeway valve 92. Sufficient water is admitted tosubmerge the inlet openings between the fins of the pump body. The valve92 is closed before the water reaches the level of the arms 75, 76 andpreferably when the water is a little below the screen 95. Soap thenpreferably added to the water in the tank. The motor is then operated,rotating the vertical shaft 40. This rotates the impeller which ismounted upon the shaft 40. The impeller blades 63 draw water from thetank through the inlet passages between the fins 25 and throw itoutwardly in the casing 23, while giving it a whirling motion. Owing tothe form of the inlet passages air is not drawn into the pump even whenthe water in the tank is so shallow that it just submerges the outerends of these passages. The stationary blades 64 direct the waterwhirling about in the casing 23 to the center of the casing whence it isdischarged upwardly through the neck 26. into thehub 73. It passesthrough the hub into the spray arms 7 5, 76 and out through the upwardlydirected discharge orifices 77 78, 79, 80, and 81 of the spray arms infan-shaped sprays. The reaction of the water discharged through theinclined orifices 78, 81 causes the hub and arms to rotate. In thisrotation the discharge orifices 77, 79 and 80 move in diifer' entcircles so that water is projected upwardly against all parts of thedishes con-- tained in the rack 13, serving thoroughly to cleanse themin a very short time. During this operation, the solid matter removedfrom the dishes is caught upon the screen 95 and thus prevented fromentering the pump casing. Upon the completion of the washing, the waterin the tank is withdrawn through the opening 90 by placing this openingin communication with the drain pipe 94 through the three-way valve 92.Clean water may then be admitted as before from the pipe 93 and theoperation repeated to rinse the dishes and remove all soapy water fromthem.

The dish' washing machine shown in Figs. 1. to 4, which has beendescribed, illustrates the application of the new automotive dishwashing unit to a tank designed to be used for dish washing only. Whilethe compactness of the dish washing unit and the fact that it may becompletely assembled before being applied to the tank makes the dishwashing machine described simpler and more economical to manufacturethan dish washing machines heretofore made, the utility of this compactdish washing unit is still more evident in connection with theapplication of it to other types of receptacles.

In Fig. 5 is shown a kitchen sink 100 whichis divided by an integralpartition 101 intoa shallow portion 102 and a deep porton 103. The deepportion 103 has at its bottom an opening about the periphery of whichthe dish washing unit is secured. The cover 104 of the deep portion 103ofthe sink serves as a drain board for the shallow portion 102 of thesink. As sinks are customarily provided at one side with such a drainboard, the location of the dish washing unit under the drain boardplaces it out of the way and in a space which would otherwise not beused. In the form shown in Fig. 5, the opening in the portion of theframe of the unit which forms a closure for the opening 15' in thebottom of the deep portion 103 in the sink is connected through athree-way valve 92 to the drain pipe 105 of the shallow portion 102 ofthe sink and to the pipe 106 which supplies the hot water faucet 107above the shallow portion 102 of the sink. If desired, however, theopening in the frame of the unit may be connected only to the drain andwater may be introduced into the deep portion 103 of the sink through anaperture in the partition 101 which may be provided with a removableclosure;

Fig. 6 shows the dish washing unit 20 ap plied to a cylindrical tank 10the upper edge of which is secured about the periphery of an opening ina board 120, preferably made of sheet metal, so that the tank issuspended from the board. The board 120 is provided with legs 122 and isadapted to be laced at the side of a kitchen sink 121.

he inner end of the board 120 rests upon the edge of the sink. 121 andis supported thereby while the outer end of the board is supported bythe legs 122. The cylindrical tank 10' is in general similar to the tank10 shown in Fig. 1 and the washing unit 20 is mounted in its bottom inthe same way. A drain board 123 is hinged to the board 120. This drainboard dish washing attachment occupies but a small space and may beapplied to any sink without alteration'thereof, it being merelynecessary to make the pipe connections between the dish washing unit andthe drain pipe and hot water pipe of the sink. The washing unit belowthe drain board is in convenient position for use whenever desired, itbeing merely necessary to raise the drain board 123 to obtain access toit. When the washing mechanism is not in; use the drain board 123 liesupon the board 120 covering the tank 10', and is in position to serve asa drain board for the sink 121.

Figs. 7 and 8 show another application of the dish washing unit 20 to akitchen sink. In this form, the sink 109 is of the usual size and sha eexcept that it is provided at the center 0% its bottom with a circularwell 110 at the bottom of which is an opening 15. It is about theperiphery of this opening that the legs of the rack and the cover.

' raaaree the frame 21 or the dish washingunit at a secured. The depthof the well 110 is such that while the entire pump body 22 is below thebottom of the sink 109, the arms 75,- 76

and serve to hold the rack above thearms 75, 70. A removable dome-shapedcover 112 which may be either squareor circular in W6 cross-section isplaced over the dish rack and arms to confine the water projectedupwardly from the arms. The bottom of the sink 109 may be provided witha rib 114 to positli gn e screen 95 is at the level of the bottom of thesink 109. The drain opening in the unit frame may be connected to thedrain pipe of the sink through a valve 113. It is not necessary toconnect this opening with a source of hot water as'the well 110 may befilled with hot water from the hot water faucet 115 of the sink. This isdone before the cover 112 is placed in position.

When it is desired to use the sink 109 independently of the dish washingunit, the

cover 112 and the rack 13' are removed from the sink. The screen 95 maythen be removed so that the screw 71 ma be reached and loosened,permitting the wlthdrawal of the bushing 70 from the discharge neck 20so' that the arms, hub and hearing may be lifted out. The screen 95 isthen replaced and a plu or cap 116 laced in the discharge neck 26 %Fig.8). hen this has been done no portion of the washing mechanism remainswithin the sink. 109 so that the sink may be used in the ordinarymanner. u

The combined sink and dish washing apparatus shown in Figs. 5 to 8 formsthe subject matter of our divisional application filed January 19,1924:, Serial No. 687,180,

and is, therefore, not claimed herein. Furthermore, certain featuresillustrated and described in this application and independent of theinvention claimed herein constitute a part of the subject matter of theco-pending application of one of us, Herbert E. Merseles, as co-inventorwith Frank W. Bemm, filed October 9, 1919, Serial No. 329,- 533, andare, therefore, not claimed here n.

It should be understood that the dish washing unit described may beapplied to other types of receptacles than those illustrated.Furthermore, the invention in its broadest sense is not limited to theparticular embodiment of it illustrated since the unit may beconstructed so as to embody washing mechanism of various difierenttypes. We believe. that the invention has produced the first compactself-contained dish washing unit comprising both dishf' washingmechanism and actuating mechanism, and we wish it understood that it isour intention to claim such a unit and the tom,

, anda mechanical features which make possible the construction of sucha unit, independently of the particular type of washing mechanism oractuating mechanism which may be incorporated in the unit.

What is claimed is:

1. In combination with a receptacle having an opening in its bottom, a,dish washing unit including dish washing mechanism and automotiveactuating mechanism therefor, and comprising a rotary member including apart of the dish washing mechanism and a part of the actuating mechanismand a single rigid shaft on which both said parts are mounted, and asingle rigid non-rotary frame formed to provide supporting bearings forsaid rotary member and to provide a closure for the opening in thereceptacle.

2. A dish washing unit as claimed in claim 1, in which the portion ofthe rigid frame forming a closure for the opening in the receptaclecontains a drain opening for the receptacle so that no other drain forthe receptacle need be provided.

3. A dish washing, machine, comprising the combination with a receptaclehaving an opening in its bottom, of a rigid frame including a flat platecontaining a hole and having its peripheral portion secured to thebottom of the receptacle about the periphery of the opening therein soas to form a closure for said opening and a part depending from andsupported by said closure plate, a motor in the depending part of saidframe having, a vertical shaft extending into the receptacle through thehole in the closure plate, and rotary dish washing mechanism located inthe receptacle and actuated by said shaft.

4. A dish washing machine, comprising a receptacle having an opening inits bota dish-support in said receptacle and spacedupwardly from thebottom thereof, dish washing unit comprising a rigid frame having a partforming a closure for the opening in the bottom of the receptacle andsecured to the bottom of the receptacle about the periphery of saidopening and a part depending from and supported by said closure, a motorin the depending part of said frame having a vertical shaft extendinginto the receptacle through said closure, and rotary mechanism in thelower part of the receptacle actuated by said shaft and adapted todirect a washingmedium upwardly against articles on the dish-support.

5. A. dish washing machine, comprising a receptacle, an external supportfor the receptacle, a support in the upper part of said receptacle forthe dishes to be washed, and a dish washing unit comprising a rigidframe depending from the bottom of the receptacle and independent of thereceptacle support, a motor in said frame below the charge openingreceptacle having a vertical shaft extending through the bottom of thereceptacle, rotary mechanism in the lower part of the receptacleactuated by said shaft and adapted to project a washing medium upwardlyagainst the dishes on said support, and means to prevent the washingmedium in the receptacle fromentering said motor.

6. A dish washing machine, comprising a receptacle, an external supportfor the receptacle, a support in the upper part of said receptacle forthe dishes to be washed, and a dish washing unit comprising a rigidframe depending from the bottom of the receptacle and independent of thereceptacle support, a motor in said frame below the receptacle having avertical shaft extending through the bottom of the receptacle, rotarymechanism in the lower part of the receptacle coaxial with said shaftand actuated thereby and adapted to project a washing medium upwardlyagainst the dishes on said support, and means to prevent the washingmedium in the receptacle from entering said motor.

7. In combination with a receptacle vhaving an openingin its bottom, adish wash-' ing unit comprlsing-a pump body forming a closure for saidopening and provided with inlet openings communicating with thereceptacle, an upwardly directed discharge opening located within thereceptacle and a central bottom opening; a motor rigidly secured to thebottom of said pump'body and having a vertical shaft extending into saidbody through its bottom opening; an impeller mounted on said motor shaftwithin said pump body and adapted to draw water from said receptaclethrough said intake openings and discharge the water through saiddischarge opening; and means communicating with said discharge openingand adapted to direct the water discharged upwardly against dishes orother articles placed in the receptacle.

8. In combination with a receptacle having an opening in its bottom, adish washing unit comprising a pump body having an impeller-enclosingcasing within said receptacle and a spaced bottom forming a closure forsaid opening in the receptacle, said body being provided with an intakeopening between said casing and bottom, an upwardly directed dischargeopening formed in said casing, and a central opening formed in saldbottom; a motor rigidly secured to the bottom of said body and having avertical shaft extending through the opening in the bottom of the pumpbody into said casing; an impeller mounted on said motor shaft with insaid casing and adapted to draw water from said tank through said intakeopening and discharge the water through said disand means communicatingwith said discharge opening and adapted to ill?) direct the waterdischar ed upwardly! against dishes or Olllilfifpdl'lilGliQS placed inthe receptacle.

' 9. In combination with a receptacle having an opening in its bottom, adish washingunit comprising a pump body forming a closure for saidopening and provided with an intake openingcommunicating with thereceptacle, an upwardly directed discharge. opening located within thereceptacle and'a central bottom opening; a hollow hub rotatably mountedon the pump body and having an intake opening communicating with .said'discharge 0 ening; hollow spray arms extending radia ly from said hollowhub above said openin and having upwardly diing unit comprising a pumpbody forming shaft a chamber for an impeller and a closure for saidopening and provided with an intake openin communicating with thereceptacle at the ottom thereof, an upwardly directed discharge opening,a central-bottom opening, and an eccentric bottom opening; meanscommunicatingiwith said eccentric opening for withdrawing liquid fromthe receptacle therethrough; a motor rigidly secured to the bottom ofthe pump having a vertical extending through the central opening in saidclosure into saidimpeller chamher; a rotary impeller mounted .on saidshaft within the impeller chamber of the pump body and adapted to drawwater from the receptacle through said intake opening and discharge itthrough said up wardly directed opening; and means communicating withsaid 0 ening adapted to.

direct the water upwar ly against articles placed in the rece tacle.

11. In combinatlon with a receptacle having an opening in its bottom, adish washing unit comprising a pump body forming a closure for saidopening and provided with inlet openings communicating with areceptacle, an upwardly directed discharge opening in the receptacle anda centraI bottom opening; a motor ri idly secured to the bottom of saidpump bo' y havin a vertical shaft extending into the pum bo y throughits bottom opening, an impe er mounted on said motor shaft within saidpum body and adapted to draw water from sanfrece tacle through saidintake opening and disc large the water through sald discharge opening,and a vertically adjustable thrust. bea

pump body.

hollow hub rotatabl said shaft within the casm inmate said shaft in saidmotor 'easin adapted to adjust the position of the im'pe er in the ,12.A dish. washing unit comprising a pump casing having an intake openingand an upwardly directed dischargeopening, a mounted on said casing andhaving an inta e opening communicating with said discharge opening,horizontal spray arms extending radially from said hub above saidopening and having-upwardly directed inclined discharge orifices, amotor rigidl secured to the bottom of said casing an having a verticalshaft extending into said casing, and an im eller mounted on and adaptedto draw water through said lntake openin p and to force the waterthrough the hub an arms, causing a rotation thereof.

13. A dish washing unit comprising a pump casing havin an intake 0 tralupwardl y directed ischarge opening in its top, a hollow hub rotatablzmounted on said casing and havin an inta e opening communicating withsai dischar opening, hollow spray arms extending ra ially from said hubabove said openin and rovided with upwardly direct'edinc 'ned i'schargeorifices, a motor rigidly secured to the bottom of said casing having avertical shaft coaxial with said hollowhuband extending into the casing,and an impeller mounted on said shaft within the casing and adapted todraw water through said intake opening and to force the water throughthe hub and arms, causing a rotation thereof.

14. Dish washing mechanism, comprising a pump casing having a'verticalshaft opening and an intake opening and an upwardl directeddischarge'opening, a hollow hu rotatably mounted on said casing andhaving an intake opening communicating with said discharge opening,hollow spray arms ening. and a cenextending radially from said hubabove;

said opening and provided with upwardly. directed inclined dischargeorifices, a rotary vertical shaft projecting into said casing throu hsaid s aft opening, and a rotary impel er in said casing, mounted onsaid shaft, and adapted to draw water through said intake 0 ening and toforce the water through said ab and arms, causing a rotation thereof.

15. Dish washing mechanism, comprising a pump casing having an intakeopening and a central upward y directed discharge opening, a hollow hubrotatably mounted on said casing and having an intake openingcommunicating with said disehar e opening, hollow spra arms extending:ra ially from said hub a ove said opening and provided with upwardlydirected inclined discharge orifices, and a rotary impeller in saidcasing coaxial with said hub and adapted todraw water through saidintake messes municating with said discharge opening spray armsextending radially from sal hub and having upwardly directed inclineddischarge orifices; a rotary impeller in said casing, coaxial with saidhub, and adapted to draw water through said intake openings and passagesand to throw said water to the side of the casing while giving it awhirling motion; and fixed spiral blades in the casing above theimpelleradapted to direct the water whirling about the side of the easing intosaid hollow hub so that the water is -forced through the spray arms,causin the hub and arms to rotate.

.17. -n a washing machine, the combination of a hollow rotatably mountedhub, twohollow spray arms extending radially from said hub, one of saidarms being rovided with two spaced discharge ori ces, the portion ofsaid arm between said orifices being closed, and the other of said armsbein provided with a discharge orifice located at a distance from theaxis of the causing a rotatlon of hub substantially e ual to thedistance from, the axis of the hu to the middle of the closed ortion ofthe other arm between its said orifices, means for forcing water intosaid arms through the hub, and means for the arms and hub moving" thedischarge orifices of said firstmentioned arm in circles spaced atsubstantially eqlual distances within and without the circ e in whichthe, orifice of said second-mentioned arm is moved.

18. In a washin machine, the combination of a rotatab y mounted hollowhub having an axial intake opening, and a pair of diametrically oppositeradial arms extending from said hub, said arms being rovided with morethan two discharge onces positioned at such distances from the axis ofthe hub that each orifice moves in a difierent one of a set of equallyspaced concentric circles when the arms rotate,

some of said discharge orifices being formed in one of said arms, andthe remainder of them in the other of said arms.

In testimony whereof we have hereunto set our hands in the presence'oftwo subscribing witnesses.

HERBERT E. ME-RS ELES. l-IENRY R. MERSELES.

CHARLES F. SIMMONS. PAUL H. ENGEL. Witnesses:

J. F. DONOVAN, E, Armem.

